/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.huawei.boostkit.spark.compress;

import io.airlift.compress.Decompressor;

import java.io.IOException;

public class AircompressorCodec implements CompressionCodec {
    private final Decompressor decompressor;

    AircompressorCodec(Decompressor decompressor) {
        this.decompressor = decompressor;
    }

    // Thread local buffer
    private static final ThreadLocal<byte[]> threadBuffer =
            new ThreadLocal<byte[]>(){
                @Override
                protected byte[] initialValue() {
                    return null;
                }
            };

    @Override
    public int decompress(byte[] input,int inputLength,byte[] output) throws IOException {
        int uncompressLen =
                decompressor.decompress(input, 0, inputLength,
                        output, 0, output.length);
        return uncompressLen;
    }
}
